Carton or container



June 4, 1929. w. 1 BODMAN 1,715,349

CARTON OR CONTAINER Filed Nov. 4, 1926 zum, K7/fm] Wm Patented June d, i929..

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WALTM'LIGHT JBODMAN, OF NEW YRK, N. Y.

GARTON OR CONTAINER.

'Application led November 4, 1926. Serial No. 1.462%.

My,y invention relates to improvements in containers, usually in the form vof a carton. My improved container is particularly adapted as an insulating and bracing element to be used between walls to insulate them from each other against heat transmission and radiation, and brace them. Containers of this general description have been found to be of great advantage for the purpose stated, as

they are light and strong, and can be made good heat insulators. In producing containers of this kind, however, there are certain attributes which must obtain. The container must be cheap or it cannot be economically used; it must be light to prevent adding undue weight to the material to which it is applied; it must be moisture proof; it must be a good insulator; and from the fact that these containers are sometimes exhausted and then filled with a gas,` or sometimes used to contain dead air, it follows that such a container must be air and gas tight. f

To enable the container to meet the above conditions, it must also be provided with a valve, but the valve should be self closing and must be exceedingly sim le and cheap or otherwise its expense wou d prevent its use, and obviously the use of the container.

My invention is intendedI to fulfill the above, conditions. This will be better lunderstood from the following description.

Reference is to be had to the accompanying drawings forming a part vof this specification, in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is an end view of the container showing the valve arrangement.

Figure 2 is a longitudinal section of the container, and I Figure 3 is a broken side elevation.

The body of the container can be of any desired shape, but it is usually cylindrical as it is easier to make it in this form, and moreover such a shape vgives it the greatest strength for a given weight. The body has 'an inner wall 10 which can be of paper, wood pulp or other suitable inexpensive material, a A middle layer 11 of metal lfoil, preferably leadA foil, and an outer layer 12 of paper or other..

cheap poor conducting materiah 'Ihesel 'parts 10, 11 and 12 can be pasted or" therigl wise fastened together to make a complete composite body. v

The container is provided with a closingf cap 13 at one end, and a similar cap 13 at the? Thus it will be seenthat l have produced other. These caps are in form not novel, havf ing flanges 14 which fit over the container body, but they are ma'de like the bod already described, each having an inner layer 15 of 4paper or suitable material, an intermediate lafyer 16 of metal foil,'and`an outer layer 17 o non-metallic material, as for example paper. 'lhe inner layer 15 of each cap is of such a size as to overlie the end portions of the metal layer 11 ofthe bodyhus making better insulation as the meta arts of the body and caps will be out of con act It will be noted/that when the carton is thus made it can be thin, light, and strong, as the caps give it additional strength, and it will be further observed that it will be a poor conductor lof heat, and will be impervious vto moisture, air, or other gas.

To provide for exhausting or fillinga contamer, a valve must be provided, and to this end the container is erforated at one end as shown at 19, althoug the perforation might belocated at anydesired point. This perforation 1s closed on one side, preferably the inner side, by a valve 20 inl the form of an elastic' diaphragm, rubber being suitable.

The valve is secured to the inner wallso as to close the opening 19, andit is slitted as shown at 21 to permit a capillary tube 22 to be pushed through the slit for the lpurpose of exhausting the container or of inserting a gas or other medium. The tube 22 can be readily pushed through the valve 20, and when it is withdrawn, the slit 19 closes, and because of the elastic nature of the valve, the slit will close with sufficient' tightness to prevent noticeable leakage. To insure an hermetical seal, however, a seal 23 of paper or other material can be pasted .over the outside of the hole 19 as illustrated in Figure 3.

a very cheap, strong, light, simple container, fulfilling the requirements above specified, and particularly well adapted for the uses noted, and for many other uses which l have not mentioned.

l claims- 1. As an `improved article of manufacture, a'- gas and water tight container having a laminated body and an inner lamination of metal foil, and laminatedl caps closing over the ends of the bo'dy, the caps also belng of laminated structure containing a layer of foil disposed so that the foil of the body andthat of the caps are lout of contact.

2. As an improved article ofmanufacture,

a container or carton of poor heat conductivity having a metallic layer between its outer and inner walls with the metallic layer of the body out of contact with the metallic layers of the end portions. v

'3. As an improved article of manufacture, a container or carton having inner and outer non-metallic poor heat conducting walls, and a metallic layer between sai'd walls with the metallic layer of the body out of contact with the metallic layers of the end portions. 4. As an improved article of manufacture,

a container having inner and outernon-metallic walls of poor heat conductivity, and an intermediate layer of metal foil between the walls with the metallic layer of the body out of contact with the metallic layers of-the end portions.

5. As an improved article of manufacture, a container or carton having a body with inner and outer walls of poor conductivity, a metallic layer between the said walls, and caps fitting over the ends of the body, said caps being of poor conductivity and having an internal layer of metal, and with the inner wall of each cap overlying the metal portion of the body of the carton with the metallic layer of the body out of contact with the Inetallic layers of the end portions.

In testimony whereof, I have signed .my name to this specification this 26 day 0L October, 1926. l

y WALTER LIGHT BODMAN. 

